Online Python Code Obfuscator
Welcome to the Python Code Obfuscator – a free online tool to obfuscate your Python code and make it harder to read and reverse-engineer. This tool transforms your readable Python code into an obfuscated version that maintains functionality while being difficult for humans to understand.
Our obfuscator uses multiple techniques including variable renaming, string encoding, and code restructuring to protect your Python source code. The obfuscated code runs exactly the same as the original but is much harder to comprehend and modify. Perfect for protecting intellectual property, preventing code theft, or adding an extra layer of security to your Python applications.
All obfuscation happens directly in your browser – your code never leaves your computer. The tool is completely free to use with no registration required. Simply paste your Python code, click obfuscate, and get the protected version instantly.
Obfuscation Techniques
- Variable Renaming: Replaces meaningful variable names with random strings
- String Encoding: Encodes string literals to make them unreadable
- Code Restructuring: Reorganizes code structure while maintaining logic
- Comment Removal: Strips all comments and docstrings
- Whitespace Minimization: Removes unnecessary whitespace
How This Works
Parse Python Code
Your code is parsed into an Abstract Syntax Tree (AST) using Python's built-in parser. This ensures we understand the code structure perfectly.
Identify & Map Identifiers
The obfuscator identifies all variables, functions, and classes. It creates a mapping of original names to obfuscated names (e.g., calculate_fibonacci → _0x0).
Transform AST Nodes
The AST is traversed and transformed. Variables are renamed, strings are encoded with base64, and comments are removed - all while preserving the code's logic.
Generate Obfuscated Code
The transformed AST is converted back to Python code. The result is syntactically valid, functionally identical, but much harder to understand.
| Original Code | Obfuscated Code | |
|---|---|---|
calculate_fibonacci | → | _0x0 |
"Fibonacci sequence" | → | __import__('base64').b64decode('...') |
sequence = [0, 1] | → | _0x2 = [0, 1] |
Use Cases
- Protecting proprietary algorithms and business logic
- Preventing unauthorized code modification
- Adding security layer to distributed Python applications
- Protecting intellectual property in open-source projects
- Making reverse engineering more difficult
Note: Obfuscation is not encryption. While it makes code harder to read, determined attackers can still reverse-engineer obfuscated code. For sensitive applications, combine obfuscation with other security measures like encryption and access controls.
Part of the BudiBadu Ecosystem
Specialized Online Python compiler powered by Pyodide WebAssembly. Run Python Library directly in your browser with zero setup.